Home / 76,321.02-105,226.22-54,543.32

Finding the Fourth Proportional to 76,321.02, 105,226.22 and 54,543.32

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Solution

The fourth proportional to 76,321.02, 105,226.22 and 54,543.32 is: 75,200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,321.02 : 105,226.22 = 54,543.32 : x
  2. Step 2: Convert to fraction form
    76,321.02/105,226.22 = 54,543.32/x
  3. Step 3: Cross multiply
    76,321.02x = 105,226.22 × 54,543.32
  4. Step 4: Simplify right side
    76,321.02x = 5,739,387,986.57
  5. Step 5: Solve for x
    x = 5,739,387,986.57/76,321.02
  6. Step 6: Final answer
    x = 75,200.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.